Timothy Mulrooney / mDot_LoRa_Connect_Woodstream_Demo_tjm

test demo

Dependencies:   PinDetect libmDot mbed-rtos mbed-src

Fork of mDot_LoRa_Connect_Woodstream_Demo by James Coleman

main.cpp@5:66abb6adfdc5, 2015-11-10 (annotated)

Committer:
tmulrooney
Date:
Tue Nov 10 23:55:42 2015 +0000
Revision:
5:66abb6adfdc5
Parent:
4:47c98ad6a0c3 
update

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jlcolemanmbed 0:5fa2b08cb3e0 1 /**********************************************************************************
jlcolemanmbed 0:5fa2b08cb3e0 2 * This program monitors the power on state, kill state and battery voltage on
jlcolemanmbed 0:5fa2b08cb3e0 3 * Woodstream mouse trap using the Multitech mDot and UDK2 development system.
jlcolemanmbed 0:5fa2b08cb3e0 4 * The power on state is monitored on the PA_4(UDK2 Pin D10)and the kill state is
jlcolemanmbed 0:5fa2b08cb3e0 5 * monitored on the PA_5 (UDK2 Pin D13) Digital Input Pins. The battery voltage
jlcolemanmbed 0:5fa2b08cb3e0 6 * is monitored on the PB_1 (UDK2 Pin A0) Analog Input. The status of these pins
jlcolemanmbed 0:5fa2b08cb3e0 7 * are transferred from the mDot LoRa to the Conduit LoRa gateway. The status is
jlcolemanmbed 0:5fa2b08cb3e0 8 * also shown on the USB Debug Terminal Window.
jlcolemanmbed 0:5fa2b08cb3e0 9 *********************************************************************************/
jlcolemanmbed 0:5fa2b08cb3e0 10
jlcolemanmbed 0:5fa2b08cb3e0 11 #include "mbed.h"
jlcolemanmbed 0:5fa2b08cb3e0 12 #include "mDot.h"
jlcolemanmbed 0:5fa2b08cb3e0 13 #include "MTSLog.h"
jlcolemanmbed 0:5fa2b08cb3e0 14 #include <string>
jlcolemanmbed 0:5fa2b08cb3e0 15 #include <vector>
jlcolemanmbed 0:5fa2b08cb3e0 16 #include <algorithm>
jlcolemanmbed 0:5fa2b08cb3e0 17 #include "PinDetect.h"
jlcolemanmbed 0:5fa2b08cb3e0 18
tmulrooney 1:535366982662 19 #define MIN_CHANGE_BATTERY_VOLTAGE 0
tmulrooney 5:66abb6adfdc5 20 #define LED_TIME 1
tmulrooney 2:a61b09bc91ea 21 #define BATTERY_TIME 2.0
tmulrooney 3:34d92fdfbe06 22 #define KILL_STATUS_TIME 3.0
tmulrooney 3:34d92fdfbe06 23 #define POWER_ON_TIME 4.0
tmulrooney 1:535366982662 24
jlcolemanmbed 0:5fa2b08cb3e0 25 mDot* dot;
tmulrooney 1:535366982662 26 Ticker ledTimer;
tmulrooney 1:535366982662 27 Ticker batteryTimer;
tmulrooney 2:a61b09bc91ea 28 Ticker killStatusTimer;
tmulrooney 2:a61b09bc91ea 29 Ticker powerOnTimer;
jlcolemanmbed 0:5fa2b08cb3e0 30
tmulrooney 1:535366982662 31 AnalogIn batteryVoltage(PB_1);
tmulrooney 2:a61b09bc91ea 32 DigitalIn powerOn(PA_4);
tmulrooney 4:47c98ad6a0c3 33 DigitalIn killStatus(PA_5);
tmulrooney 1:535366982662 34 DigitalOut transmitLED(PA_0);
jlcolemanmbed 0:5fa2b08cb3e0 35
jlcolemanmbed 0:5fa2b08cb3e0 36 // Configuration variables
tmulrooney 1:535366982662 37 static std::string config_network_name = "LORA_NET";
tmulrooney 1:535366982662 38 static std::string config_network_pass = "BLUE_HEN1";
jlcolemanmbed 0:5fa2b08cb3e0 39 static uint8_t config_frequency_sub_band = 7;
jlcolemanmbed 0:5fa2b08cb3e0 40
jlcolemanmbed 0:5fa2b08cb3e0 41 //Global Variables
tmulrooney 3:34d92fdfbe06 42 bool readyToSendBatteryVoltage;
tmulrooney 3:34d92fdfbe06 43 bool readyToSendKillStatus;
tmulrooney 3:34d92fdfbe06 44 bool readyToSendPowerOn;
tmulrooney 3:34d92fdfbe06 45 float lastBatteryVoltage;
tmulrooney 2:a61b09bc91ea 46 uint8_t lastKillStatus;
tmulrooney 2:a61b09bc91ea 47 uint8_t lastPowerOn;
jlcolemanmbed 0:5fa2b08cb3e0 48
jlcolemanmbed 0:5fa2b08cb3e0 49 //Function prototypes
tmulrooney 1:535366982662 50 void ledWrite();
jlcolemanmbed 0:5fa2b08cb3e0 51 void periodicSendTock();
tmulrooney 1:535366982662 52 void batteryRead();
tmulrooney 2:a61b09bc91ea 53 void killStatusRead();
tmulrooney 2:a61b09bc91ea 54 void powerOnRead();
jlcolemanmbed 0:5fa2b08cb3e0 55 void printError(mDot* dot, int32_t returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 56 void printVersion();
jlcolemanmbed 0:5fa2b08cb3e0 57 bool setFrequencySubBand(uint8_t subBand);
jlcolemanmbed 0:5fa2b08cb3e0 58 bool setNetworkName(const std::string name);
jlcolemanmbed 0:5fa2b08cb3e0 59 bool setNetworkPassphrase(const std::string passphrase);
tmulrooney 1:535366982662 60 bool setTxDataRate(const int dataRate);
jlcolemanmbed 0:5fa2b08cb3e0 61 bool setPower(uint8_t power);
jlcolemanmbed 0:5fa2b08cb3e0 62 bool setAck(uint8_t retries);
jlcolemanmbed 0:5fa2b08cb3e0 63 bool joinNetwork();
jlcolemanmbed 0:5fa2b08cb3e0 64 bool send(const std::string text);
tmulrooney 1:535366982662 65 char latestData[100];
jlcolemanmbed 0:5fa2b08cb3e0 66
jlcolemanmbed 0:5fa2b08cb3e0 67
jlcolemanmbed 0:5fa2b08cb3e0 68 int main()
jlcolemanmbed 0:5fa2b08cb3e0 69 {
tmulrooney 1:535366982662 70 bool configFail = false;
tmulrooney 3:34d92fdfbe06 71 readyToSendBatteryVoltage = false;
tmulrooney 3:34d92fdfbe06 72 readyToSendKillStatus = false;
tmulrooney 3:34d92fdfbe06 73 readyToSendPowerOn = false;
tmulrooney 5:66abb6adfdc5 74 lastBatteryVoltage = 0.0;
tmulrooney 5:66abb6adfdc5 75 lastKillStatus = killStatus;
tmulrooney 2:a61b09bc91ea 76 lastPowerOn = powerOn;
tmulrooney 2:a61b09bc91ea 77
jlcolemanmbed 0:5fa2b08cb3e0 78 //Start LED startup sequence
tmulrooney 3:34d92fdfbe06 79 ledTimer.attach(&ledWrite, LED_TIME);
jlcolemanmbed 0:5fa2b08cb3e0 80
jlcolemanmbed 0:5fa2b08cb3e0 81 printf("\r\n\r\n");
jlcolemanmbed 0:5fa2b08cb3e0 82 printf("=====================================\r\n");
jlcolemanmbed 0:5fa2b08cb3e0 83 printf("WoodStream LoRa Mousetrap Demo \r\n");
jlcolemanmbed 0:5fa2b08cb3e0 84 printf("=====================================\r\n");
jlcolemanmbed 0:5fa2b08cb3e0 85 printVersion();
jlcolemanmbed 0:5fa2b08cb3e0 86
jlcolemanmbed 0:5fa2b08cb3e0 87 // get the mDot handle
tmulrooney 1:535366982662 88 dot = mDot::getInstance();
jlcolemanmbed 0:5fa2b08cb3e0 89 dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
jlcolemanmbed 0:5fa2b08cb3e0 90
tmulrooney 1:535366982662 91 //*******************************************
tmulrooney 1:535366982662 92 // configuration
tmulrooney 1:535366982662 93 //*******************************************
jlcolemanmbed 0:5fa2b08cb3e0 94 // reset to default config so we know what state we're in
jlcolemanmbed 0:5fa2b08cb3e0 95 dot->resetNetworkSession();
jlcolemanmbed 0:5fa2b08cb3e0 96 dot->resetConfig();
jlcolemanmbed 0:5fa2b08cb3e0 97
tmulrooney 1:535366982662 98 // set up the mDot with our network information: frequency sub band, network name, and network password
tmulrooney 1:535366982662 99 // these can all be saved in NVM so they don't need to be set every time - see mDot::saveConfig()
tmulrooney 1:535366982662 100 configFail = !setFrequencySubBand(config_frequency_sub_band);
tmulrooney 1:535366982662 101 configFail |= !setNetworkName(config_network_name);
tmulrooney 1:535366982662 102 configFail |= !setNetworkPassphrase(config_network_pass);
tmulrooney 1:535366982662 103 configFail |= !setTxDataRate(mDot::SF_8);
tmulrooney 1:535366982662 104 configFail |= !setPower(20); // Reduce latency for 868 units
tmulrooney 1:535366982662 105 configFail |= !setAck(0); // Disable ack for less latency
tmulrooney 1:535366982662 106
tmulrooney 1:535366982662 107 printf("Configration %s\r\n",configFail?"Failed":"Passed");
tmulrooney 1:535366982662 108
tmulrooney 1:535366982662 109 // save this configuration to the mDot's NVM
tmulrooney 1:535366982662 110 printf("saving config\r\n");
tmulrooney 1:535366982662 111 if (! dot->saveConfig())
tmulrooney 1:535366982662 112 {
tmulrooney 1:535366982662 113 logError("failed to save configuration");
tmulrooney 1:535366982662 114 }
tmulrooney 1:535366982662 115 //*******************************************
tmulrooney 1:535366982662 116 // end of configuration
tmulrooney 1:535366982662 117 //*******************************************
tmulrooney 1:535366982662 118
tmulrooney 1:535366982662 119 // keep trying to join the network
tmulrooney 1:535366982662 120 while (!joinNetwork())
tmulrooney 1:535366982662 121 {
tmulrooney 1:535366982662 122 wait(200);
tmulrooney 1:535366982662 123 dot->resetNetworkSession();
tmulrooney 1:535366982662 124 }
jlcolemanmbed 0:5fa2b08cb3e0 125
jlcolemanmbed 0:5fa2b08cb3e0 126 // Stop LED startup sequence & configure them for operation
jlcolemanmbed 0:5fa2b08cb3e0 127 transmitLED = 1;
tmulrooney 3:34d92fdfbe06 128 // start all paramter timers to sample analog and digital inputs
tmulrooney 2:a61b09bc91ea 129 batteryTimer.attach(batteryRead, BATTERY_TIME);
tmulrooney 2:a61b09bc91ea 130 killStatusTimer.attach(killStatusRead, KILL_STATUS_TIME);
tmulrooney 2:a61b09bc91ea 131 powerOnTimer.attach(powerOnRead, POWER_ON_TIME);
jlcolemanmbed 0:5fa2b08cb3e0 132
tmulrooney 1:535366982662 133 while (1)
tmulrooney 1:535366982662 134 {
tmulrooney 1:535366982662 135 // is there anything to send
tmulrooney 3:34d92fdfbe06 136 if(readyToSendBatteryVoltage)
tmulrooney 3:34d92fdfbe06 137 {
tmulrooney 3:34d92fdfbe06 138 sprintf(latestData,"Voltage %2.2f",(double)lastBatteryVoltage);
tmulrooney 3:34d92fdfbe06 139 printf("%s\r\n",latestData);
tmulrooney 3:34d92fdfbe06 140 send(latestData);
tmulrooney 3:34d92fdfbe06 141 readyToSendBatteryVoltage = false;
tmulrooney 3:34d92fdfbe06 142 }
tmulrooney 3:34d92fdfbe06 143 if(readyToSendKillStatus)
tmulrooney 1:535366982662 144 {
tmulrooney 3:34d92fdfbe06 145 sprintf(latestData,"KillStatus %d",lastKillStatus);
tmulrooney 4:47c98ad6a0c3 146 printf("%s\r\n",latestData);
tmulrooney 4:47c98ad6a0c3 147 send(latestData);
tmulrooney 3:34d92fdfbe06 148 readyToSendKillStatus = false;
tmulrooney 3:34d92fdfbe06 149 }
tmulrooney 3:34d92fdfbe06 150 if(readyToSendPowerOn)
tmulrooney 3:34d92fdfbe06 151 {
tmulrooney 3:34d92fdfbe06 152 sprintf(latestData,"PowerOn %d",lastPowerOn);
tmulrooney 3:34d92fdfbe06 153 printf("%s\r\n",latestData);
tmulrooney 3:34d92fdfbe06 154 send(latestData);
tmulrooney 3:34d92fdfbe06 155 readyToSendPowerOn = false;
jlcolemanmbed 0:5fa2b08cb3e0 156 }
tmulrooney 1:535366982662 157 }
jlcolemanmbed 0:5fa2b08cb3e0 158 }
jlcolemanmbed 0:5fa2b08cb3e0 159
tmulrooney 1:535366982662 160 void ledWrite()
tmulrooney 1:535366982662 161 {
tmulrooney 1:535366982662 162 transmitLED = !transmitLED;
tmulrooney 1:535366982662 163 }
tmulrooney 1:535366982662 164
tmulrooney 1:535366982662 165 void batteryRead()
tmulrooney 1:535366982662 166 {
tmulrooney 3:34d92fdfbe06 167 lastBatteryVoltage = batteryVoltage * (float)3.3;
tmulrooney 3:34d92fdfbe06 168 readyToSendBatteryVoltage = true;
jlcolemanmbed 0:5fa2b08cb3e0 169 }
jlcolemanmbed 0:5fa2b08cb3e0 170
tmulrooney 2:a61b09bc91ea 171 void killStatusRead()
tmulrooney 2:a61b09bc91ea 172 {
tmulrooney 4:47c98ad6a0c3 173 lastKillStatus = killStatus;
tmulrooney 3:34d92fdfbe06 174 readyToSendKillStatus = true;
tmulrooney 2:a61b09bc91ea 175 }
tmulrooney 2:a61b09bc91ea 176
tmulrooney 2:a61b09bc91ea 177 void powerOnRead()
tmulrooney 2:a61b09bc91ea 178 {
tmulrooney 3:34d92fdfbe06 179 lastPowerOn = powerOn;
tmulrooney 3:34d92fdfbe06 180 readyToSendPowerOn = true;
tmulrooney 3:34d92fdfbe06 181 }
tmulrooney 2:a61b09bc91ea 182
jlcolemanmbed 0:5fa2b08cb3e0 183 void printVersion()
jlcolemanmbed 0:5fa2b08cb3e0 184 {
tmulrooney 1:535366982662 185 printf("%s Built on: %s %s\r\n\r\n", dot->getId().c_str(),__DATE__,__TIME__);
jlcolemanmbed 0:5fa2b08cb3e0 186 }
jlcolemanmbed 0:5fa2b08cb3e0 187
jlcolemanmbed 0:5fa2b08cb3e0 188 bool setFrequencySubBand(uint8_t subBand)
jlcolemanmbed 0:5fa2b08cb3e0 189 {
jlcolemanmbed 0:5fa2b08cb3e0 190 int32_t returnCode;
tmulrooney 1:535366982662 191
jlcolemanmbed 0:5fa2b08cb3e0 192 printf("Setting frequency sub band to '%d'...\r\n", subBand);
jlcolemanmbed 0:5fa2b08cb3e0 193 if ((returnCode = dot->setFrequencySubBand(subBand)) != mDot::MDOT_OK) {
jlcolemanmbed 0:5fa2b08cb3e0 194 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 195 return false;
jlcolemanmbed 0:5fa2b08cb3e0 196 }
jlcolemanmbed 0:5fa2b08cb3e0 197 return true;
jlcolemanmbed 0:5fa2b08cb3e0 198 }
jlcolemanmbed 0:5fa2b08cb3e0 199
jlcolemanmbed 0:5fa2b08cb3e0 200 bool setNetworkName(const std::string name)
jlcolemanmbed 0:5fa2b08cb3e0 201 {
jlcolemanmbed 0:5fa2b08cb3e0 202 int32_t returnCode;
tmulrooney 1:535366982662 203
jlcolemanmbed 0:5fa2b08cb3e0 204 printf("Setting network name to '%s'...\r\n", name.c_str());
jlcolemanmbed 0:5fa2b08cb3e0 205 if ((returnCode = dot->setNetworkName(name)) != mDot::MDOT_OK)
jlcolemanmbed 0:5fa2b08cb3e0 206 {
jlcolemanmbed 0:5fa2b08cb3e0 207 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 208 return false;
jlcolemanmbed 0:5fa2b08cb3e0 209 }
jlcolemanmbed 0:5fa2b08cb3e0 210 return true;
jlcolemanmbed 0:5fa2b08cb3e0 211 }
jlcolemanmbed 0:5fa2b08cb3e0 212
jlcolemanmbed 0:5fa2b08cb3e0 213 bool setNetworkPassphrase(const std::string passphrase)
jlcolemanmbed 0:5fa2b08cb3e0 214 {
jlcolemanmbed 0:5fa2b08cb3e0 215 int32_t returnCode;
tmulrooney 1:535366982662 216
jlcolemanmbed 0:5fa2b08cb3e0 217 printf("Setting passphrase to '%s'...\r\n", passphrase.c_str());
jlcolemanmbed 0:5fa2b08cb3e0 218 if ((returnCode = dot->setNetworkPassphrase(passphrase)) != mDot::MDOT_OK)
jlcolemanmbed 0:5fa2b08cb3e0 219 {
jlcolemanmbed 0:5fa2b08cb3e0 220 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 221 return false;
jlcolemanmbed 0:5fa2b08cb3e0 222 }
jlcolemanmbed 0:5fa2b08cb3e0 223 return true;
jlcolemanmbed 0:5fa2b08cb3e0 224 }
jlcolemanmbed 0:5fa2b08cb3e0 225
tmulrooney 1:535366982662 226 bool setTxDataRate(const int dataRate)
tmulrooney 1:535366982662 227 {
tmulrooney 1:535366982662 228 int32_t returnCode;
tmulrooney 1:535366982662 229
tmulrooney 1:535366982662 230 printf("Setting TX Spreading factor to %d...\r\n",dataRate);
tmulrooney 1:535366982662 231 if ((returnCode = dot->setTxDataRate(dataRate)) != mDot::MDOT_OK)
tmulrooney 1:535366982662 232 {
tmulrooney 1:535366982662 233 logError("Failed To Set Tx Datarate %d:%s", returnCode, mDot::getReturnCodeString(returnCode).c_str());
tmulrooney 1:535366982662 234 printError(dot, returnCode);
tmulrooney 1:535366982662 235 return false;
tmulrooney 1:535366982662 236 }
tmulrooney 1:535366982662 237 return true;
tmulrooney 1:535366982662 238 }
tmulrooney 1:535366982662 239
jlcolemanmbed 0:5fa2b08cb3e0 240 bool setPower(uint8_t power)
jlcolemanmbed 0:5fa2b08cb3e0 241 {
jlcolemanmbed 0:5fa2b08cb3e0 242 int32_t returnCode;
jlcolemanmbed 0:5fa2b08cb3e0 243 printf("Setting tx power to '%d'...\r\n", power);
tmulrooney 1:535366982662 244 if ((returnCode = dot->setTxPower(power)) != mDot::MDOT_OK)
tmulrooney 1:535366982662 245 {
jlcolemanmbed 0:5fa2b08cb3e0 246 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 247 return false;
jlcolemanmbed 0:5fa2b08cb3e0 248 }
jlcolemanmbed 0:5fa2b08cb3e0 249 return true;
jlcolemanmbed 0:5fa2b08cb3e0 250 }
jlcolemanmbed 0:5fa2b08cb3e0 251
jlcolemanmbed 0:5fa2b08cb3e0 252 bool joinNetwork()
jlcolemanmbed 0:5fa2b08cb3e0 253 {
jlcolemanmbed 0:5fa2b08cb3e0 254 int32_t returnCode;
jlcolemanmbed 0:5fa2b08cb3e0 255 printf("\r\nJoining network...\r\n");
tmulrooney 1:535366982662 256 if ((returnCode = dot->joinNetworkOnce()) != mDot::MDOT_OK)
tmulrooney 1:535366982662 257 {
jlcolemanmbed 0:5fa2b08cb3e0 258 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 259 return false;
jlcolemanmbed 0:5fa2b08cb3e0 260 }
jlcolemanmbed 0:5fa2b08cb3e0 261 printf("Network Joined!\r\n");
jlcolemanmbed 0:5fa2b08cb3e0 262 return true;
jlcolemanmbed 0:5fa2b08cb3e0 263 }
jlcolemanmbed 0:5fa2b08cb3e0 264
jlcolemanmbed 0:5fa2b08cb3e0 265 bool setAck(uint8_t retries)
jlcolemanmbed 0:5fa2b08cb3e0 266 {
jlcolemanmbed 0:5fa2b08cb3e0 267 int32_t returnCode;
jlcolemanmbed 0:5fa2b08cb3e0 268 printf("Setting ack to '%d'...\r\n", retries);
jlcolemanmbed 0:5fa2b08cb3e0 269 if ((returnCode = dot->setAck(retries)) != mDot::MDOT_OK)
jlcolemanmbed 0:5fa2b08cb3e0 270 {
jlcolemanmbed 0:5fa2b08cb3e0 271 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 272 return false;
jlcolemanmbed 0:5fa2b08cb3e0 273 }
jlcolemanmbed 0:5fa2b08cb3e0 274 return true;
jlcolemanmbed 0:5fa2b08cb3e0 275 }
jlcolemanmbed 0:5fa2b08cb3e0 276
jlcolemanmbed 0:5fa2b08cb3e0 277 bool send(const std::string text)
jlcolemanmbed 0:5fa2b08cb3e0 278 {
jlcolemanmbed 0:5fa2b08cb3e0 279 int32_t returnCode;
jlcolemanmbed 0:5fa2b08cb3e0 280 uint32_t timeTillSend = dot->getNextTxMs();
jlcolemanmbed 0:5fa2b08cb3e0 281 if (timeTillSend != 0) {
jlcolemanmbed 0:5fa2b08cb3e0 282 printf("waiting %lu ms to send\r\n", timeTillSend);
jlcolemanmbed 0:5fa2b08cb3e0 283 return false;
jlcolemanmbed 0:5fa2b08cb3e0 284 }
jlcolemanmbed 0:5fa2b08cb3e0 285
jlcolemanmbed 0:5fa2b08cb3e0 286 printf("Sending data... ");
jlcolemanmbed 0:5fa2b08cb3e0 287 std::vector<uint8_t> data(text.begin(), text.end());
jlcolemanmbed 0:5fa2b08cb3e0 288 if ((returnCode = dot->send(data, 1)) != mDot::MDOT_OK)
jlcolemanmbed 0:5fa2b08cb3e0 289 {
jlcolemanmbed 0:5fa2b08cb3e0 290 printError(dot, returnCode);
jlcolemanmbed 0:5fa2b08cb3e0 291 return false;
jlcolemanmbed 0:5fa2b08cb3e0 292 }
jlcolemanmbed 0:5fa2b08cb3e0 293 printf("Data sent!\r\n");
jlcolemanmbed 0:5fa2b08cb3e0 294 return true;
jlcolemanmbed 0:5fa2b08cb3e0 295 }
jlcolemanmbed 0:5fa2b08cb3e0 296
jlcolemanmbed 0:5fa2b08cb3e0 297 void printError(mDot* dot, int32_t returnCode)
jlcolemanmbed 0:5fa2b08cb3e0 298 {
jlcolemanmbed 0:5fa2b08cb3e0 299 std::string error = mDot::getReturnCodeString(returnCode) + " - " + dot->getLastError();
jlcolemanmbed 0:5fa2b08cb3e0 300 printf("%s\r\n", error.c_str());
jlcolemanmbed 0:5fa2b08cb3e0 301 }